#include <stdio.h>
#include <stdlib.h>
#include <Windows.h>
#include <string.h>
int main()
{
	char s[] = {"welcome to bit!!!"};
	char d[] = "#################";
	int left = 0;
	int right = strlen(d)-1;
	while(left<=right)
	{
		d[left]=s[left];
		d[right]=s[right];
		printf("%s\n\a",d);
		Sleep(1000);
		system("cls");
		left++;
		right--;
	}
	return 0;
}